public class Problem {
    public static void main(String[] args) {
/*        String s =null;
        if(s==null){
            throw new RuntimeException("空指针异常");
        }*/

        try {
            System.out.println(10 / 0);

        } catch (RuntimeException e) {
            System.out.println("e = " + e);
        }

        try {
            System.out.println(10 / 0);
        } catch (Exception e) {
//            throw new RuntimeException(e);
            e.printStackTrace();
//            e.getMessage();
//            e.toString();

        }
        System.out.println("end");

        Problem problem = new Problem();
        try {
            problem.clone();
        } catch (CloneNotSupportedException e) {
            throw new RuntimeException(e);
        } finally {
            System.out.println("close");

        }
    }
}
